Resorcinol (1,3-Dihydroxybenzene)
CAS Number: 108-46-3
Resorcinol is a dihydric phenol serving as a coupling component in the synthesis of fluorescent dyes (fluorescein, eosin), azo dyes, and as a key raw material for resorcinol-formaldehyde resin used in tire cord adhesion. In the dye and colorant industry, it enables the synthesis of brilliant yellow and orange fluorescent dyes used in highlighters, safety garments, and paper. Chemzip supplies technical-grade resorcinol for dyestuff and polymer applications.
Technical Specifications
| appearance | White to off-white crystalline flakes |
| purity (%) | ≥99.0 |
| melting point (°C) | 109–112 |
| residue on ignition (%) | ≤0.05 |
Applications
- Fluorescent dye synthesis (fluorescein, eosin, rhodamine)
- Azo dye coupling component for yellow and orange shades
- Resorcinol-formaldehyde resin for tire cord adhesion
- Pharmaceutical intermediate (estrogen precursor)
- UV-curable coating resin monomer
Key Features
- High-purity grade suitable for pharmaceutical and food-grade dye synthesis
- Low ignition residue indicates minimal inorganic impurities
- Stored and shipped under dry, cool conditions to prevent oxidative browning
- Available in 25 kg iron drums or PE-lined fiber drums
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CAS Number
108-46-3
Category
Dye / Pigment IntermediatesAvailability
In StockSample
Dispatched within 5 days